670006722 has 32 divisors (see below), whose sum is σ = 1670667264. Its totient is φ = 174027600.

The previous prime is 670006717. The next prime is 670006739. The reversal of 670006722 is 227600076.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 670006722.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 724654 + ... + 725577.

It is an arithmetic number, because the mean of its divisors is an integer number (52208352).

Almost surely, 2^670006722 is an apocalyptic number.

670006722 is an abundant number, since it is smaller than the sum of its proper divisors (1000660542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670006722 is a wasteful number, since it uses less digits than its factorization.

670006722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450254.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 670006722 is about 25884.4880575220. The cubic root of 670006722 is about 875.0369386311.

Adding to 670006722 its reverse (227600076), we get a palindrome (897606798).

The spelling of 670006722 in words is "six hundred seventy million, six thousand, seven hundred twenty-two".